Peak frequency detection device, method, and program

    公开(公告)号:US09857399B2

    公开(公告)日:2018-01-02

    申请号:US15314614

    申请日:2014-07-10

    发明人: Kazushi Akutsu

    IPC分类号: G01R19/04 G01R23/00

    摘要: A peak frequency detection device provided with: an n multiplication unit that multiplies each element of a digital data string by n (n is an integer of 2 or more); an FFT unit that derives, as a virtual peak frequency, a frequency that corresponds to the maximum value of a power spectrum that is obtained by performing a fast Fourier transform of a digital data string of N (N is an integer of a power of 2 and is determined in accordance with a sampling frequency (fs), a sampling resolution (ftg), and a time window length (Ttg)) sample frequencies (fs) that are multiplied by n; and a 1/n multiplication unit that outputs the value of the virtual peak frequency multiplied by 1/n as the peak frequency of the digital data string. The peak frequency detection device satisfies n≧1/(ftg×Ttg), fs/(n×ftg)≦N≦fs×Ttg, and fs>2×n×fch.

    Method for estimating the water speed of an acoustic node
    92.
    发明授权
    Method for estimating the water speed of an acoustic node 有权
    用于估计声学节点的水速的方法

    公开(公告)号:US09488745B2

    公开(公告)日:2016-11-08

    申请号:US13950015

    申请日:2013-07-24

    申请人: SERCEL

    IPC分类号: G01V1/38 G01S15/50

    CPC分类号: G01V1/38 G01S15/50 G01V1/3817

    摘要: A method and apparatus are provided for estimating the water speed of a first acoustic node D belonging to a network of acoustic nodes, at least some of the acoustic nodes being arranged along towed acoustic linear antennas (S). The method includes steps of: a) defining a N-dimensional base, the center of which is the first acoustic node and comprising a single axis, when N=1, or N non-collinear axes, when N=2 or N=3, each axis being associated with a base vector extending from the first acoustic node to another acoustic node; and b) estimating an amplitude of the water speed, as a function of: for each given other acoustic node defining the base vector: an acoustic propagation duration of an acoustic signal transmitted from the first acoustic node to the given other acoustic node, and an acoustic propagation duration of an acoustic signal transmitted from the given other acoustic nodes to the first acoustic node; and a value c of the underwater acoustic sound velocity.

    摘要翻译: 提供了一种用于估计属于声音节点网络的第一声音节点D的水速的方法和装置,至少一些声学节点沿着拖曳的声学线性天线(S)布置。 该方法包括以下步骤:a)当N = 2或N = 3时,定义N维基座,其中心是N = 1或N个非共线轴,其中心是第一声节点,并且包括单个轴 每个轴与从第一声音节点延伸到另一个声音节点的基本矢量相关联; 以及b)估计水速度的幅度,作为以下的函数:对于定义所述基矢量的每个给定的其他声学节点:从所述第一声学节点发送到所述给定的其他声学节点的声学信号的声学传播持续时间,以及 从所述给定的其他声音节点发送到所述第一声音节点的声学信号的声学传播持续时间; 和水下声速的值c。

    Ultrasonic sensor device
    93.
    发明授权
    Ultrasonic sensor device 有权
    超声波传感器装置

    公开(公告)号:US09348027B2

    公开(公告)日:2016-05-24

    申请号:US14117050

    申请日:2012-06-12

    IPC分类号: G01S15/50 B06B1/06 G01S7/521

    摘要: An ultrasonic sensor device includes a substrate, a piezoelectric vibrator, and a Q-factor adjuster. The piezoelectric vibrator includes a pair of detection electrodes that face each other in a thickness direction of the substrate and a piezoelectric body interposed between the electrodes. The piezoelectric vibrator provides a membrane structure which is formed on a surface of the substrate and has rigidity lower than that of a remaining portion of the substrate. An ultrasonic wave is transmitted by the piezoelectric vibrator, and its reflected wave is received by the same piezoelectric vibrator. The Q-factor adjuster adjusts a Q-factor of the piezoelectric vibrator so that the Q-factor can be larger during a transmission period where the piezoelectric vibrator transmits the ultrasonic wave than during a reception period where the piezoelectric vibrator receives the ultrasonic wave.

    摘要翻译: 超声波传感器装置包括基板,压电振动器和Q因子调节器。 压电振子包括在基板的厚度方向上彼此相对的一对检测电极和插在电极之间的压电体。 压电振动器提供形成在基板的表面上的膜结构,其刚性低于基板的剩余部分的刚度。 超声波由压电振子传递,其反射波被同一压电振子接收。 Q因子调节器调节压电振动器的Q因子,使得压电振动器发送超声波的传播期间的Q因子可以比在压电振动器接收超声波的接收时段期间更大。

    OBSTACLE DETECTION DEVICE FOR VEHICLE AND OBSTACLE DETECTION SYSTEM FOR VEHICLE
    94.
    发明申请
    OBSTACLE DETECTION DEVICE FOR VEHICLE AND OBSTACLE DETECTION SYSTEM FOR VEHICLE 有权
    用于车辆的车辆和障碍物检测系统的障碍物检测装置

    公开(公告)号:US20160003943A1

    公开(公告)日:2016-01-07

    申请号:US14772380

    申请日:2014-02-27

    IPC分类号: G01S15/93 G01S15/87

    摘要: An operation unit calculates a position of an obstacle with respect to a vehicle using a first distance and a second distance. The first distance is a distance to the obstacle measured by a first ultrasonic sensor (ultrasonic sensor) having a first microphone (microphone) at a first timing. The second distance is a distance to the obstacle measured by a second ultrasonic sensor (ultrasonic sensor) having a second microphone (microphone) at a second timing which is later than the first timing.

    摘要翻译: 操作单元使用第一距离和第二距离来计算障碍物相对于车辆的位置。 第一距离是在第一定时由具有第一麦克风(麦克风)的第一超声波传感器(超声波传感器)测量的障碍物的距离。 第二距离是在比第一定时晚的第二定时由具有第二麦克风(麦克风)的第二超声波传感器(超声波传感器)测量的障碍物的距离。

    User control gesture detection
    95.
    发明授权
    User control gesture detection 有权
    用户控制手势检测

    公开(公告)号:US08749485B2

    公开(公告)日:2014-06-10

    申请号:US13332348

    申请日:2011-12-20

    IPC分类号: G06F3/033

    摘要: The description relates to user control gestures. One example allows a speaker and a microphone to perform a first functionality. The example simultaneously utilizes the speaker and the microphone to perform a second functionality. The second functionality comprises capturing sound signals that originated from the speaker with the microphone and detecting Doppler shift in the sound signals. It correlates the Doppler shift with a user control gesture performed proximate to the computer and maps the user control gesture to a control function.

    摘要翻译: 该描述涉及用户控制手势。 一个示例允许扬声器和麦克风执行第一功能。 该示例同时利用扬声器和麦克风执行第二功能。 第二功能包括用麦克风捕获来自扬声器的声音信号,并检测声音信号中的多普勒频移。 它将多普勒频移与在计算机附近执行的用户控制手势相关联,并将用户控制手势映射到控制功能。

    ULTRASONIC MOTION SENSOR DEVICE
    96.
    发明申请
    ULTRASONIC MOTION SENSOR DEVICE 审中-公开
    超声波运动传感器装置

    公开(公告)号:US20130300298A1

    公开(公告)日:2013-11-14

    申请号:US13886648

    申请日:2013-05-03

    申请人: Steinel GmbH

    发明人: Thomas Moeller

    IPC分类号: H05B37/02 G01S15/50

    摘要: An ultrasonic motion sensor device for lighting control, having a housing (10), preferably designed for ceiling-mounting, at least one ultrasonic transducer (11, 14) arranged in the housing (10) for sending and/or receiving ultrasonic waves through a housing opening associated with the ultrasonic transducer (11, 14), and having a control device (9) associated with the ultrasonic transducer (11, 14). The opening in the housing is formed by a horn which is spaced apart from the ultrasonic transducer (11, 14) via a resonator cavity arranged in the housing (2) and an impedance opening (21) is provided, preferably bounded by the horn, which the emitted and/or received ultrasonic waves (11, 14) are to pass through, the cross-sectional area (18) of which is less than a maximum cross-sectional area of the resonant cavity and than a maximum cross-sectional area of the horn.

    摘要翻译: 一种用于照明控制的超声波运动传感器装置,具有优选地设计用于天花板安装的壳体(10),布置在壳体(10)中的至少一个超声波换能器(11,14),用于通过一个或多个超声波发射和/或接收超声波 与所述超声换能器(11,14)相关联的壳体开口,并且具有与所述超声换能器(11,14)相关联的控制装置(9)。 外壳中的开口由与超声波换能器(11,14)间隔开的喇叭形成,所述喇叭经由布置在壳体(2)中的谐振腔,并且设置阻挡开口(21),优选地由喇叭限定, 发射和/或接收的超声波(11,14)要穿过的横截面面积(18)小于谐振腔的最大横截面面积,而不是最大横截面面积 的角。

    Hull Inspection System
    97.
    发明申请
    Hull Inspection System 审中-公开
    船体检测系统

    公开(公告)号:US20130204543A1

    公开(公告)日:2013-08-08

    申请号:US13697228

    申请日:2010-05-10

    IPC分类号: G01M10/00

    摘要: A hull inspection system useable for inspecting a hull of a maritime vessel passing a water volume at a first velocity, the system comprising: pulse emitting means, for being placed in the water volume and for emitting energy pulses into said water volume; sensing means, for being placed in the water volume, and being connected to the pulse emitting means, for sensing and measuring travelling time of energy pulses reflected by the passing vessel; a sensor data processing unit; connected to the sensing means, for processing data from the sensor means; a vessel data furnishing unit, connected to the sensor data processing unit, for providing vessel velocity data to the sensor data processing unit; wherein a three-dimensional representation of the hull of the maritime vessel is created based on data acquired by a procedure involving combination of data from a number of consecutive sensing means linear scans, and wherein the consecutive linear scans are acquired at consecutive moments in time, thereby enabling creation of a three dimensional representation of the hull.

    摘要翻译: 一种船体检查系统,其可用于检查以第一速度通过水量的海运船只的船体,该系统包括:脉冲发射装置,用于放置在水体积中并将能量脉冲发射到所述水体积中; 检测装置,用于放置在水体积中,并连接到脉冲发射装置,用于感测和测量由通过的容器反射的能量脉冲的行进时间; 传感器数据处理单元; 连接到感测装置,用于处理来自传感器装置的数据; 连接到所述传感器数据处理单元的用于向所述传感器数据处理单元提供容器速度数据的容器数据提供单元; 其中,基于通过涉及来自多个连续感测装置线性扫描的数据的组合的过程所获取的数据来创建所述船舶的船体的三维表示,并且其中在连续的时刻获取所述连续线性扫描, 从而能够创建船体的三维表示。

    Method and system for range measurement
    99.
    发明授权
    Method and system for range measurement 失效
    范围测量方法和系统

    公开(公告)号:US07414705B2

    公开(公告)日:2008-08-19

    申请号:US11562410

    申请日:2006-11-21

    IPC分类号: G01C3/08

    摘要: A method (200) and system (220) for range detection is provided. The system can include a sensing unit (110) for detecting a location and movement of a first object (401), and a processor (107) for providing a measure of the movement. The processor can convert the measure to a coordinate signal for moving a second object (124) in accordance with a location and movement of the first object. The system can include a pulse shaper (109) for producing a pulse shaped signal (167) and a phase detector (101) for identifying a movement from a reflected signal (166). A portion of the pulse shaped signal can be a frequency modulated region (312), a constant frequency region (316), or a chirp region (324). In one arrangement, the pulse shaper can be a cascade of all-pass filters (515) for providing phase dispersion.

    摘要翻译: 提供了一种用于范围检测的方法(200)和系统(220)。 该系统可以包括用于检测第一物体(401)的位置和移动的感测单元(110),以及用于提供移动量度的处理器(107)。 处理器可以根据第一对象的位置和移动将该测量值转换为用于移动第二对象(124)的坐标信号。 该系统可以包括用于产生脉冲形信号(167)的脉冲整形器(109)和用于识别来自反射信号(166)的移动的相位检测器(101)。 脉冲形状信号的一部分可以是频率调制区域(312),恒定频率区域(316)或啁啾区域(324)。 在一种布置中,脉冲整形器可以是级联的全通滤波器(515),用于提供相位色散。

    Method for an Antenna Angular Calibration by Relative Distance Measuring
    100.
    发明申请
    Method for an Antenna Angular Calibration by Relative Distance Measuring 失效
    通过相对距离测量的天线角度校准方法

    公开(公告)号:US20080068927A1

    公开(公告)日:2008-03-20

    申请号:US11573201

    申请日:2005-06-30

    申请人: Denis Pillon

    发明人: Denis Pillon

    IPC分类号: G01S15/50

    摘要: The present invention relates to the angular calibration of passive reception systems such as sonars or active ones such as certain radars whose angular performance is inadequate. The invention proposes a method making it possible to perform antenna calibration using the detection system associated with this antenna under real operating conditions. The method according to the invention consists in making an immersed noisemaker deployed along a substantially rectilinear uniform trajectory and a submarine equipped with an antenna to be calibrated along any trajectory whatsoever, but nonrectilinear. The method according to the invention consists also in implementing a trajectography algorithm making it possible to determine the noisemaker-antenna relative distance at known instants ti, and to deduce therefrom the trajectory followed by the noisemaker as well as the bearing corresponding to the positions of the noisemaker at the measurement instants. The bearing thus calculated is compared with the bearing measurements carried out directly by the sonar associated with the antenna to be calibrated. This method applies in particular to the calibration of sonar antennas during their commissioning.

    摘要翻译: 无源接收系统的角度校准技术领域本发明涉及诸如声纳或被动接收系统的角度校准,例如角度性能不足的某些雷达。 本发明提出了一种使得可以在实际操作条件下使用与该天线相关联的检测系统进行天线校准的方法。 根据本发明的方法包括制造沿着基本上直线的均匀轨迹部署的浸没式噪声器,以及配备有沿着任何轨迹校准的天线的潜艇,但是非直线性。 根据本发明的方法还包括实施一种外形学算法,使得可以确定在已知时刻ti处的噪声干扰器 - 天线相对距离,并且从其推导出由噪声发生器跟随的轨迹以及对应于 在测量时刻发声。 将如此计算的轴承与与要校准的天线相关联的声纳直接执行的轴承测量进行比较。 该方法特别适用于声纳天线在调试过程中的校准。